Primary Drive RK MXZ Race 420 Replacement Chain | Surron Ultra Bee eDirtyBike Compact Design: Complements the sleek

Compact Design: Complements the sleek and high-performance aesthetics of today’s e-bikes

Reinforced to 2 mm thickness

Fitment for most of e-moto (LBX

Works with your existing chain and front sprocket

Fits a 240MM Rotor

Primary Drive RK MXZ Race 420 Replacement Chain | Surron Ultra Bee eDirtyBike Compact Design: Complements the sleekReplacement RK MXU chain for all DirtyBike Ultra Bee 420 Primary Chain Drive systems Super high quality non sealed RK MXZ chain is the best for racing. It has the lowest drag for the most power output. Direct replacement for all DirtyBike Ultra Bee 420 primary belt to chain conversion kits.